Automatic stopping and restarting mechanism for looms



'(No Model.) 2 Sheets-Sheet 1.

E. HOLLINGWORTH.

AUTOMATIC STOPPING AND RESTARTING MECHANISM FOR LOOMS.

No. 466,754. Patented Jan. 5, 1892.

33, flrtowe 123* meme 0 (No Model.) 2 Sheets-Sheet 2., E. HOLLINGWORTH.

AUTOMATIC STOPPING AND RE$TARTING MECHANISM FOR LOOMS.

No. 466,754. Patented Jan. 5, 1892..

Qmi Pwamo @M @Mozmm UNITED STATES PATENT OFFICE.

EDIVARD IIOLLINGIVORTH, OF DOBCROSS, ENGLAND, ASSIGNOR TO THE KNO'WLESLOOM IVORKS, OF WVORCESTER, MASSACHUSETTS.

SPECIFICATION forming part of Letters Patent No. 466,754, dated January5, 1892.

Application filed December 22, 1890. Serial No. 375,464. (No model.)Patented in England February 26, 1880, No. 845.

T0 all whom it may concern:-

Be it known that I, EDWARD HOLLING- WORTH,asubject of the Queen of GreatBritain, residing at Dobcross, near Huddersfield, in the county of York,England, have invented certain new and useful Improvements inAutomaticStopping and Restarting Mechanism for Looms, (for which I have receivedLetters Patent in England, No. 845, dated February 26, 1880;) and I dohereby declare that the following is a full, clear, and exactdescription thereof, which, in connection with the drawings making apart of this specification, will enable others skilled in the art towhich my invention belongs to make and use thesame.

My invention relates to power-looms for weaving textile fabrics, andmore particularly to that class of looms which are required to stop ordwell at regular intervals and for a fixed period of time, and then torestart and run for a fixed period of time, and then to stop or dwelland start again, and so on.

The object of my invention is to combine with a power-loom of the classabove described means for automatically stopping the loom or causing itto dwell at regular intervals and for a fixed period of time, and forautomatically restarting the loom at the expiration of said period oftime and then continuing to repeat the operation of stopping andrestarting the loom automatically.

My invention consists in combining with a power-loom of the class abovereferred to means for automatically stopping and automaticallyrestarting said loom, as above described; and it will first be describedwith reference to the accompanying drawings, and then be defined in theclaims at the close of this specification.

Referring to the drawings, Figure 1 is a' part elevation of the back ofa loom, showing my improvements. Fig. 2 is a section of some of theparts, and Fig. 3 is an end view showing the pegging and star wheelmotion.

In the accompanying drawings, A is the crank-shaft, upon which is theloose pulley B and the driving-pulley C, keyed upon a long boss D, allof which run loose upon the crank-shaft. On the boss D is keyed orotherwise fastened a pegging-wheel E, provided with a projection or lug6. On the crankshaft is another boss G, which is fastened thereon, andupon this boss is a sliding clutch II, with a projection or lug 7L,capable of'gearing with the lug e on the pegging-wheel E. In connectionwith the peggingwvheel E is a star-wheel I and a cam J for operating thelever K, which slides the clutch-box H out of gear with thepegging-wheel, and M is a spiral spring for operating the lever K in theopposite direction and throwing the clutch into gear. I n

In connection with the clutch mechanism above described I may employ abrake mechanism, if desired. Said brake mechanism consists in thisinstance of a rod R, attached at one end to the lower end of the lever Kand at the other end to a crank-arm on the lower end of the vertical rodS. Said rod S is supported and-turns in a sleeve attached to theloom-frame. On the upper end of the rod S is fast an arm, carrying atits outer end a brake T, adapted to be moved away from and against theperiphery of the fly-wheel u as the rod S is rocked in its bearing.

The operation of the mechanism shown is as follows: IV hen the loom isgoing, the strap is placed on the driving-pulley O and thelugs e and hare in gear, as shown in the drawings. hen, however, the weft has beensent across the loom a sufficient number of times, it is requisite forthe loom to stand, in order that the warp may be out to form the pile,the peg b of the pegging-wheel E at each revolution taking into gearwith the star-wheel I, turning it around a quarter of a revolution,whichin due time causes the cam J to come into contact with the pulley c onthe lever K, operating the lever in such a manner as to slide theclutch-box H on the boss G, disengaging the projections or lugs e and hand at the same time actuating the rods R and S, applying the brake T tothe fly-wheel a, which instantaneously stops the crank-shaft andprevents the loom making another pick; also, gives time for theattendant to withdraw one wire and introduce another and also time forcutting the pile; butimmediately the cam J has passed the pulley c thespiral spring M acts upon the leverin the other direction, sliding theclutch H upon the boss G and placing the lugs eand it once more intogear, and the loom is immediately restarted.

I have shown in the drawings and described automatically restarting theloom at the expiration of said period of time, and then repeating theoperation of automatically stop- I ping and automatically restarting theloom;

but will be understood that I do not limit my invention to the specialform of mechan- 18111 or means herein shown and described, as anyequivalent mechanism or means, combined with a power-loom of the classabove referred to and for the purpose above stated, may be employed.

I am not aware that prior to my invention a power-loom has been providedwith or has had combined therewith means for automatically stopping theoperation of the loom and cansin g the loom to stop or dwell at regularintervals and for a fixed period of time and means for automaticallyrestarting the loom at the expiration of said period of time, and againat the proper time automatically stopping the loom andautomaticallyrestarting the loom, and so on.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, in a loom, with a cam, of continuously-drivenoperating connections whereby the said cam is driven, a shippingleveroperated by the said cam, and shipping mechanism operated by said leverto stop and restart the loom automatically at regular intervals,substantially as described.

2. The combination, with the continuouslydriven driving-pulley of aloom, of a cam, operating connections whereby the said cam is drivenfrom the said pulley, a shipping-lever operated by the said cam, andshipping mechanism operated by said lever to stop and restart the loomautomatically at regular intervals, substantially as described.

3. The combination,with the driving-pulley shaft of aloom,otacontinuously-driven driving-pulley free to turn thereon, clutchconnections whereby the driving-pulley may be coupled to the shaft, acam, operating connections whereby the cam is driven from the pulley,and a shipping-lever operated by the said cam, substantially asdescribed.

4:. The combination, with the continuouslydriven driving-pulley of aloom, of a cam, operating connections whereby the saidcam is driven fromsaid driving-pulley, and shipping and brake mechanism operated by thesaid cam to stop and restart the loom automatically at regularintervals, substantially as described.

5, The combination,with the driving-pulley shaft of aloom, of acontinuously-driven drivlug-pulley free to turn thereon, clutchconnections whereby the driving-pulley may be coupled to the shaft, acam, operating connections whereby the cam is driven from the pulley,and a shipping-lever and brake mechanism operated by the said cam,substantially as described.

EDXVARD HOLLINGWORTH.

Witnesses:

JO N C. DEWEY, Paonnn SYKES.

